york city. on c-span-2, obama biographer's discuss his evolution as president. and on c-span-3, a professor how rainy on the threats and challenges facing -- hal raney on the threats and challenges facing the government work force. here is a brief look at some comments from this morning. >> when i left the white house i did a tour of the country and talked to a bunch of smart people because the truth is the world has changed. technology, entertainment, your world, all those things have changed drastically in four years. one person gave me a great piece of advice. he said you have to blow up the 2008 campaign. you're only the 1965 rolling stones once. the second time, you have to overcharge for your tickets. i told the president, it is not going to be 2008 again. he said what are you talking on?ut, we wan i said, but we're in a different time. we have to do things differently. he said, ok, but it has to be about the grassroots. >> and you have to win. there was a real debate about this. there was